Apple vs Infosys Interview Questions
Apple lists 300 LeetCode interview questions while Infosys lists 105. They share 59 problems — 20% of Apple's bank and 56% of Infosys's. Focus on the overlap first, then drill into 241 Apple-only and 46 Infosys-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 59 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Apple and Infosys.
Step 2 — Company-specific depth: Add Apple-specific problems like LRU Cache, Design Hit Counter, Reverse Linked List and Infosys-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Apple skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
59 Shared Questions
High-priority problems to practice for both Apple and Infosys.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Number of Islands | Medium |
| Merge Intervals | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Longest Common Prefix | Easy |
| Rotate Array | Medium |
| Group Anagrams | Medium |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Product of Array Except Self | Medium |
| Valid Palindrome | Easy |
| Rotate Image | Medium |
| Reverse Words in a String | Medium |
| Kth Largest Element in an Array | Medium |
| Spiral Matrix | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Maximum Subarray | Medium |
| Reverse Integer | Medium |
| Trapping Rain Water | Hard |
| Subarray Sum Equals K | Medium |
| Median of Two Sorted Arrays | Hard |
| Merge Two Sorted Lists | Easy |
| Move Zeroes | Easy |
| Climbing Stairs | Easy |
| Merge Sorted Array | Easy |
| Find the Index of the First Occurrence in a String | Easy |
| 3Sum | Medium |
| Sqrt(x) | Easy |
| Longest Consecutive Sequence | Medium |
| Remove Duplicates from Sorted Array | Easy |
Showing top 30 of 59 shared problems.
Unique to Apple (241)
Problems in Apple's list that do not appear at Infosys.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Design Hit Counter | Medium |
| Reverse Linked List | Easy |
| Valid Sudoku | Medium |
| Top K Frequent Elements | Medium |
| Course Schedule II | Medium |
| Course Schedule | Medium |
| Merge k Sorted Lists | Hard |
| Meeting Rooms II | Medium |
| Time Based Key-Value Store | Medium |
| Lowest Common Ancestor of a Binary Tree | Medium |
| Subarray Product Less Than K | Medium |
Unique to Infosys (46)
Problems in Infosys's list that do not appear at Apple.
Frequently Asked Questions
How many LeetCode questions do Apple and Infosys share?
Apple and Infosys share 59 LeetCode interview questions. 241 problems appear only in Apple's list and 46 appear only in Infosys's list.
What topics overlap most between Apple and Infosys?
The most common shared topics between Apple and Infosys are Array (21 shared questions), Two Pointers (9 shared questions), String (7 shared questions), Hash Table (5 shared questions), Sorting (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Apple or Infosys?
Apple has 76 Easy, 178 Medium, and 46 Hard questions. Infosys has 32 Easy, 57 Medium, and 16 Hard questions. Apple has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Apple and Infosys?
Start with the 59 shared problems since they cover what both companies ask most often. Then add 20 Apple-specific and 20 Infosys-specific questions to round out your prep.